Lamp-burner



(No Model.)

W. N. DANIELS.

LAMP BURNER.

No. 372,745. Patented Nov. 8, 1887.

UNITED STATES PATENT WILLIAM N. DANIELS, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO THE BRIDGEPORT BRASS COMPANY, OF CONNECTICUT.

LAM P-BU RNER.

SPECIFICATION forming part of Letters Patent No. 372,745, dated November 8, 1887.

' Application filed April 30, 1887. Serial No, 236,641. (No model.)

To aZZ whom it may concern:

Be it known that I, WILLIAM N. DANIELS, a citizen of the United States, residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Lamp-Burners; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it ap'pertains' to make and use the same.

My invention has reference to lamp-burners; but particularly does it appertain to certain means whereby the manipulation of the wick is effectively controlled, the. result aimed at being the prevention of the accidental downward throw of the wick beyond the operative field of the raising mechanism; and with this end in view my invention consists in combining with the wick-manipulating device a detent to lock said device as against any acci-' dental movement in a direction reverse to that which raises the wick, while at the same time the detent may, if desired, be so operated as to allow the wick to be lowered and entirely withdrawn from the tube.

In order that those skilled in the art to which my invention appertains may more fully understand how to make and use myirnprovement, I will describe the same in detail, referring by letter to the accompanying drawings, which form a part of this specification, and in which- Figure l isa side elevation of my improved burner; Fig. 2, a vertical section; Fig. 3, a front elevation, with the throw-off lever removed; and Fig. 4, a detail perspective of the detent.

Similar letters denote like parts in all the figures of the drawings.

A is the wick-tube, and B the wick.

C is the wick operating spindle, having toothed wheels D rigidly secured thereon, the tube being slotted, as seen at a, to permit said wheels to perform their proper function relative to the wick.

E is a detent interposed between the spindle and the tube and having a slight vertical play. This detent has atongue, F, which extends through an opening in the tube and has a frictional bearing against the wick. Ipreferably make this-detent with a slot, 12, at its center, through which, in assembled position, one of the wheels D projects. ,The body of the detent has also a frictional bearing against the spindle C, so that it will be readily understood that when the wick is raised the detent will be elevated by reason of frictional contact with the wick and spindle, so that the wheels D may be revolved freely within the slot 1); but when the wick is lowered tlfe detent will descend and the upper wall of said slot will interlock with the toothed wheel, thus preventing any further lowering of the wick. The upward movement of the detent is limited by the abutment of the tongue F against 6 5 the upper wall of the opening in the tube through which said tongue extends. I attach. to the detent athrow-ofi' lever, G, by means of which the former may be elevated and heldin that position to permit of the continued lowering of the wick in case the latter has been raised too high, or to enable it to be entirely withdrawn, if desired.

What I claim is- 1. The combination, with the tube slotted as shown, of the operating spindle having rig idly mounted thereon toothed feed-wheels extending within the slots, and the detent between said spindle and tube and having a frictional bearing against the wick and spindle, 89 whereby vertical reciprocation is imparted, said detent adapted to be depressed by the lowering of the wick, and thereby come into locking engagement with the teeth of one or more of said wheels, whereby the accidental lowering of the wick beyond the field of opertion of said wheels is automatically prevented, substantially as set forth.

2. In a lamp-burner wherein the wick is fed directly by means of toothed wheels, the com- 90 bination, with the wick-tube and the 0perat ing-spindle which carries said wheels, of a de' tent having at the top a tongue projecting inwardly against the wick through an opening in the tube, and having also a slot within which the toothed wheel extends, the body of said detent having a frictional bearing against the spindle, and the said tongue being adapted to abut against the upper wall of the said open ing, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM N. DANIELS.

Witnesses:

S. H. HUBBARD, S. S. WILLIAMSON. I 

